單片機編程實例____c語言____匯編

1、目 錄第一章 AT89S51 單片機實驗及實踐系統(tǒng)板簡介┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅1第二章 Keil C 軟件使用┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅14第三章 AT89S51 單片機下載器軟件使用┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅25第四章 實驗及實踐課題┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅281. 閃爍燈┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅282. 模擬開關燈┅┅┅┅┅┅┅┅┅

2、┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅313. 多路開關狀態(tài)指示┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅334. 廣告燈的左移右移┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅375. 廣告燈（利用取表方式）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅406. 報警產(chǎn)生器┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅437. I/O 并行口直接驅動 LED 顯示┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅468. 按鍵識別方法之

3、一┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅499. 一鍵多功能按鍵識別技術┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅5310. 00－99 計數(shù)器┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅5711. 00－59 秒計時器（利用軟件延時）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅6012. 可預置可逆 4 位計數(shù)器┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅6313. 動態(tài)數(shù)碼顯示技術┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅

4、┅┅6714. 4×4 矩陣式鍵盤識別技術┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅7015. 定時計數(shù)器 T0 作定時應用技術（一）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅7916. 定時計數(shù)器 T0 作定時應用技術（二）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅8417. 99 秒馬表設計┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅8918. “嘀、嘀、……”報警聲┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅9519. “叮咚”門鈴┅

5、┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅9920. 數(shù)字鐘（★）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅10521. 拉幕式數(shù)碼顯示技術┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅11422. 電子琴┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅12123. 模擬計算器數(shù)字輸入及顯示┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅13424. 8×8LED 點陣顯示技術┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅

6、┅┅┅┅┅┅┅14125. 點陣 LED“0－9”數(shù)字顯示技術┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅14626. 點陣式 LED 簡單圖形顯示技術┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅15327. ADC0809 A/D 轉換器基本應用技術┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅15728. 數(shù)字電壓表┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅16329. 兩點間溫度控制┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅167原理圖

7、如圖 1.2 所示：圖 1.23．三路可調(diào)電壓模塊 三路可調(diào)電壓模塊此模塊主要是用于提供 0－5V 之間的可變的模擬電壓值，即可以作為參考電壓源也可以作為模擬電壓信號。這三路是相互獨立的。分別對應著由 VR1，VR2，VR3端口輸出。具體的電路原理圖如圖 1.3 所示：圖 1.34．電源模塊 電源模塊電源模塊為系統(tǒng)板上其它模塊提供＋5V 電源，電源輸入有兩種方式，一種為交直流電源從電源插座輸入，輸入的電壓要求，直流輸入應大于 7.5V，